CVE-2025-15611
Medium · 5.4CVSS
5.4
EPSS
0.1%
Published
Apr 7, 2026
CISA due date
—
The record
The Popup Box WordPress plugin before 5.5.0 does not properly validate nonces in the add_or_edit_popupbox() function before saving popup data, allowing unauthenticated attackers to perform Cross-Site Request Forgery attacks. When an authenticated admin visits a malicious page, the attacker can create or modify popups with arbitrary JavaScript that executes in the admin panel and frontend.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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